Masoneilan* Products
SVI II ESD
GE Oil & Gas
The first SIL3 Smart ESD device that is live during and after a shutdown
2 | GE Oil & Gas
SIL, or Safety Integrity Level, is a standard
governed by the International Electrical
Committee (IEC). Its purpose is to:
●● Establish risk reduction requirements
●● Set probabilistic limits for hardware
random failure
●● Establish engineering procedures to
prevent systematic design errors
What is a SMART Shutdown Device?The Masoneilan SVI II ESD Device from GE Oil & Gas incorporates
the latest technology in emergency shutdown valve automation
and in-service valve partial stroking, and it is designed using
the proven electronic, pneumatic and non-contact technology
from the SVI II AP valve positioner. SIL3 (Safety Integrity Level 3)
compliant in accordance with IEC61508 per TUV and EXIDA, the
SVI II ESD is suitable for use in safety instrumented functions.
The designated function of the SVI II ESD can be implemented
by using a 4/20mA signal, 0-24Vdc or a combination of both.
The single 4/20mA solution is SIL3 while at 4mA, allowing the
device to execute the safety function while still being active. Key
benefits of this approach include capturing shutdown events
as a full-proof test, allowing continuous HART communications
during a trip, providing local panel annunciation, confirming ESD
operations, and using the built-in discrete outputs .
This single 4/20mA solution provides ESD function and PST
(Partial Stroke Test) function on a single wire pair. This enables:●● Reduced installation cost●● Execution of ESD valve PST from any logic solver
Automatic analysis of the ESD Valve yields additional benefits:●● Software automatically captures PST signatures●● Integration of diagnostics with logic solvers●● High diagnostic coverage factor
Partial Stroke Test
ESD Partial Stroke Signature Data
What is SIL?
Bringing Plant Safety & Integrity to a Whole New Level
T = 0 sec: Safety DemandInitiated To Close Valve
ESD Shutdown Signature
ESD Trip Signature
Safe Failure Fraction and SIL - Type ASafe Failure
Fraction (SFF) Hardware Fault Tolerance (HFT)
0 1 2
< 60% SIL 1 SIL 2 SIL 3
60 % < 90 % SIL 2 SIL 3 SIL 4
90% < 99 % SIL 3 SIL 4 SIL 4
> 99% SIL 3 SIL 4 SIL 4
Solenoid Solutions Two (2) or More For SIL3 with a Low SFF
One (1) SVI II ESD Provides High SIL and High SFF
Masoneilan SVI II ESD SIL3 Partial Stroke Test Device | 3
The innovative SVI II ESD design provides a designated safety
function completely independent from the partial stroke
testing function. The design architecture, which separates the
embedded microprocessor and the safety shutdown circuitry,
offers a sophisticated platform while being Type A (simple
device) compliant.
As a smart ESD valve device with partial stroking functionality,
the SVI II ESD includes self-diagnostics and is designed to
annunciate a fault through its built-in digital output (DO) and by
using the HART protocol. Four possible launching methods for
partial stroke testing (PST) are built in. For safety instrumented
systems usage it is assumed that annunciation is performed
through the built-in digital output or by using the HART protocol.
The safety input can either be a 4/20mA current loop (trip when
current ≤ 5.6mA) or a 24Vdc discrete input (trip on < 3Vdc).
Power to the unit is supplied by the 4/20mA current loop, except
in a two-wire discrete input configuration, in which the power is
supplied by the 24V input.
●● The SVI II ESD is unique in that it is SIL3 at 4mA(1) and
therefore allows the built-in microcontroller to capture
HART diagnostics whenever the safety function is engaged.
Compare that to the current standard approach, which
requires the signal to be 0mA to provide a safety function
with an SIL3 compliance. Such solutions do not allow
the microprocessor to be available and active during a
shutdown event.
●● Furthermore, the SVI II ESD has a configurable latching
feature whenever a trip occurs.
(1) Suitable with ASD and A/DSD models.
SVI II ESD: Designed Exclusively for ON/OFF ESD Valve Applications
Air Supply
Vent
Hall Sensor / True Position Feedback
Output Pressure
No Solenoid Required
On/OffValve
SVI II ESD operating on a quarter turn ESD valve with NAMUR VDI/VDE 3845 mounting kit
4 | GE Oil & Gas
Safety Function/PST/Diagnostic on One-Wire PairIntegration shown with a typical Logic Solver and HART® Analog Output Card.
ValVue* ESD Features●● ESD health monitoring
●● PST auto-archiving
●● Full-proof testing
●● Setup / commission / diagnose
70+ ESD Warnings
7-Language Display
English, French, German, Italian, Japanese, Portuguese, Spanish
Alternating Readings of Dynamic Variables
Safety Demand Signal Strength
ESD Signal HART Diagnostics
Analog PST(1)
Logic Solver
(1) Analog PST is patent pending.
Embedded local control panel
LCD display and three explosion proof push-buttons for:
•ValveConfigurationandCalibration •LocalPST(1)
•PST,SafetyTripandDeviceStatus •PositionFeedback
Masoneilan SVI II ESD SIL3 Partial Stroke Test Device | 5
SVI II ESD Device Models and Safety Demand Implementation
(1) The SVI II ESD provides On/Off valve positioning. Throttling capability is available in manual mode only through HART communication or local pushbuttons.
Two-Wire Analog Safety Demand (ASD)
AOControl System or
Safety System4/20mA1 + HART®
2-wire solution – Safety function triggered by current sensing (i.e.
6 | GE Oil & Gas
ESD Valve Diagnostics With ValVue ESD SoftwareThe SVI II ESD is equipped with one non-contact travel sensor, five pressure sensors, one temperature sensor, and one loop current sensor. Therefore, it can diagnose the health of the valve as well as monitor its various sub-components in real time.
The SVI II ESD provides more than 70 possible alarms/warnings
including:●● Valve Stuck Open/Closed
●● Feedback Linkage Drift
●● Pneumatic Train Integrity
●● Air Supply Low/High
●● Breakout Force Exceeded
Broad Launch Capabilities The SVI II ESD includes broad PST-launching capabilities including the following standard features:
●● Local using the LCD display, or using a local panel wired in-line with SVI II ESD
●● Remote using HART® capable interfaces
●● Remote using a specific analog signal (ASD and A/DSD models only)
●● Automated with the built-in scheduler
The SVI II ESD automatically captures the PST in its non-volatile memory and stores the analysis. Two signatures can be stored, allowing the PST Monitor functionality with ValVue ESD software to automatically synchronize its database with the field data. This software can stand alone or be integrated.
PST Parameters Since the SVI II ESD contains the settings to execute a PST in its non-volatile memory, the PST is reliably executed regardless of the launching method. The parameters include boundaries to prevent undesirable valve movements during a partial stroke test.
Full valve signature with valve/actuator friction, spring range and calibration, seating analysis and response time.
User friendly dashboard of ESD Valve condition.
PST Launching Methods
Analog Loop Current(Patent Pending)
Local Button
Built-In Scheduler
Host System via HART (EDDL, DTM or
ValVue ESD)
HART Field Calibrators
26MAY
The database-driven companion software, ValVue ESD, continuously monitors the health of the ESD valves and provides a global view of the health of all compatible ESD valves in a plant. That facilitates the planning and resources to properly maintain ESD valves. ValVue ESD software provides for the SVI II ESD setup, device alarms, PST settings, partial stroke test execution and monitoring of the installed base of ESD valves. The PST signatures are automatically stored in the software database with the built-in PST Monitor. Additionally, the software allows for proof testing signatures and stroking speed calculation signatures. The diagnostic analysis is graphically plotted over time to help operators easily identify performance degradation.
Masoneilan SVI II ESD SIL3 Partial Stroke Test Device | 7
Partial Stroke Test Overview
PST Implementation Benefits with SVI II ESD Device Technology
Integrated The test and the results are integrated with the rest of the safety system.
AutomatedPer IEC61511 requirements, PST execution can be fully automated, which reduces the risk of human error. Test results are stored in the memory of the SVI II ESD and automatically communicated to the user, providing actionable information about potential valve performance problems.
Versatile and AccessiblePSTs from the SVI II ESD can be safely executed locally or remotely, and the results accessed from the logic solver.
User FriendlyTests are easy to execute and the results are easy to understand. The user does not need to be an expert on ESD valves or digital shutdown devices to complete the test and interpret the results.
Partial Stroke Test Signature and Plotting Travel vs. Actuator Pressure
Smart partial stroke testing allows reliable testing of emergency shutdown valves and provides greater diagnostic coverage
Automated Emergency Shutdown Signature
PST signature shown over 20% travel
Plotting travel and actuator pressure vs time
DecreasingActuatorPressure
IncreasingActuatorPressure
8 | GE Oil & Gas
Example 2 - With PST & Proof Test Every 2 Years
The SVI II ESD Device is the first SIL3-rated product capable of capturing a shutdown event during a trip using a single-wire pair(1).
This feature captures the shutdown event in non-volatile memory, which allows the safety event to be investigated and a complete
proof test to be conducted. Therefore, this proof test is automatically documented and the next proof test can be rescheduled
according to the required probability of failure on demand (PFD).
Emergency Shutdown Signature
Event Timeline With and Without PSTand With Shutdown Event Capture
Example 1 Example 2 Explanation
# Of Shutdowns for Proof Testing 4 2 The mandatory testing of ESD valves requires process downtime
Cost Per Shutdown $500,000 $500,000 Average cost of shutdown including loss of production
Possible Shutdown Costs $2,000,000 $1,000,000
Savings - $1,000,000
(1) Suitable with ASD model only.
Example 1 - Without PST Proof Test Every Year
T = 0 seconds: Safety Demand Initiated To Close Valve
SVI II ESD Shutdown Signature
Masoneilan SVI II ESD SIL3 Partial Stroke Test Device | 9
The use of HART or the ESD status switch provide ESD valve and SVI II ESD diagnostics which are necessary to claim PFD improvements.
(1) The latching function is software configurable.(2) This variable is sent via HART Command 3 as a tertiary variable(3) The switch can be configured as:
- Normally Open (NO) or Normally Closed (NC)
The switch can be configured to alert if one of the following events occurs:
- PST in progress
- ESD triggered
- ESD fault annunciation
- Position low limit
- Position high limit
- Failsafe
- Normal mode
- Manual or Out-Of-Service mode
ApplicationsandSpecifications
Model ASD(Analog Safety Demand)
Model DSD(Discrete Safety Demand)
Model A/DSD(Analog Power with
Discrete Safety Demand)
Analog In (4/20mA)Safety Trip Trigger + HART®
+ Analog PST–
Device Power + Analog PST + HART
ESD In (0-24Vdc) – Safety Trip Trigger + HART Safety Trip Trigger
Analog Out (4-20mA) Position Transmitter
Switch1 (1A, 24Vdc) ESD Status
Switch2 (1A, 24Vdc) Configurable Status (3)
DI (switch input) Unlatch the SVI II ESD(1)
PV (1-5Vdc) Read Tight Shutoff Flow (2)
Local LCD / ButtonsDevice Configuration and Calibration, ESD Status
PST ConfigurationLocal PST Execution
Inputs/ Outputs
Model
10 | GE Oil & Gas
Enclosure rating NEMA 4X / IP 66
Low copper aluminum or 316L housing
Red electrical cover and housing for clear identification as a safety related device
ATEX approvals:
Intrinsic safety
Gas: II 1G Ex ia IIC T6 / T5 / T4
Dust: II 1D Ex iaD A20 T96°C
Flameproof
Gas: II 2G Ex dm IIB + H2 T6 / T5 / T4
Dust: II 2D Ex tD A21 IP66 T96°C
Energy limited
Gas: II 3G Ex nL IIC T6 / T5
Dust: II 3D Ex tD A22 IP66 T96°C
Approval standards: EN60079-0:2006, EN60079-1:2007, EN60079-11:2007, EN60079-15:2005, EN60079-18:2004, EN60079-26:2007, EN61241-0:2006, EN61241-1:2004, EN61241-11:2006, EN61241-18:2004, EN1127-1:2007, EN60529:1991
CSA international certifications:
Explosion proof CL I; Div. 1; GR B, C, D T6 / T5 / T4
Dust ignition proof CL II/III; Div. 1; GR E, F, G T6 / T5 / T4
Certified CL II; Div. 2; GR F, G
Certified CL III; Div. 2
Certified CL I; Div. 2; GR , B, C, D
Intrinsically safe CL I, II, III; Div. 1; GR A, B, C, D, E, F, G T6 / T5 / T4
Approval standard: CAN/CSA-C22.2 # 94-M91,142-M1987, 157-92, 213 M1987,60529:05
FM approvals:
Explosion proof CL I; Div. 1; GR B, C, D T6 / T5 / T4
Dust ignition proof CL II/III; Div. 1; GR E, F, G T6 / T5 / T4
Suitable for CL II, III; Div. 2; GR F, G
Non-incendive CL I; Div. 2; GR A, B, C, D
Intrinsically safe CL I, II, III; Div. 1; GR A, B, C, D, E, F, G
Approval standards: Class 3600, 3615, 3810, ANSI/NEMA 250, IEC 60079-18 IEC60529 +A1
IECEx approvals:Intrinsically safeEx ia IIC T6
Explosion proofEx d mb IIC Gb T5Ex tD A21 IP66 T96ºC; Ta=-40ºC to +85ºCIP66
Temperature class:T6 = 60°C (160°F), T5 = 75 °C (167°F),T4 = 85°C (185°F)
Immunity performance:EN61000-4-2, -3, -4, -5, -6, -8EMC per IEC61514-2, 61326, 61326-3
Radiation performance:CISPR 22
Other approvals:INMETRO, KOSHA and NEPSI
IEC61508 certified TUV Type A device (simplex, low demand)SIL3 safety shutdown function Safe failure fraction with PVST up to 99% upon model
PerformanceHysteresis + deadband ±0.3%
Operating temperature range -40°C to +85°C (-40°F to +185°F)
Input power and signalASD & A/DSD signal 4/20mA with HART® Communication protocol
Power supply taken from 4/20mA control Signal (ASD, A/DSD)
Power supply taken from 24Vdc signal (DSD)
Minimum terminal voltage 9.5Vdc @ 20mA
Safety function: < 5.6mA (model ASD) < 3Vdc (A/DSD or DSD)
Energized output: > 15mA (ASD,A/DSD), > 15Vdc (DSD)
ESD IN current draw < 9.5mA (DSD, A/DSD)
HART over 4/20mA signal (ASD,A/DSD)
HART over 24Vdc signal (DSD, requires signal conditioner)
PneumaticsRegulated and filtered air required
Single acting: supply pressure 30-120 psi max (2.1-7.8 bar).
Air supply regulated 10 psi above actuator spring range.
Air delivery: 325 Nl/min (11.55 scfm) at 2.1 bar (30psi) supply
765 Nl/min (27 scfm) at 6.2 bar (90 psi) supply
Air consumption 5.7 Nl/min (0.2 scfm) at 2.1 bar (30 psi) supply
Cv=0.53 (venting) Cv=0.57 (filling)
Control valve mounting systemNon-contact hall effect position sensor (18º to 140º rotation)
Rotary NAMUR mounting kit per VDI/VDE 3845
Reciprocating kits available
Compliance with field calibrators with HART® protocol such as GE Druck DPI620 and others
System integrationDevice description (EDDL or DTM)
ValVue ESD application
ValVue ESD PRM plug-in
Interoperability with many FDT/DTM and eDDL capable hosts
ESD and diagnostic capabilitiesIEC61508 compliant up to SIL3 certified by TUV and EXIDA
Partial stroke testing initiation (HART, analog, local pushbutton, built-in scheduler)
Digital output for PST results and SVI II ESD health
Non-volatile memory for two (2) PST signature
Non-volatile memory for ESD shutdown event signature
Safety trip trigger: 4/20mA or 24Vdc input
Local PST scheduler with built-in calendar
Full stroke valve signature & positioner diagnostics
Built-in explosion proof external LCD with pushbuttons
Language support:English Japanese French PortugueseGerman SpanishItalian
Compliance with ANSI/API 754 specificationProcess Safety Performance Indicators for the Refining and Petrochemical Industries
Hazardous area certifications
Masoneilan SVI II ESD SIL3 Partial Stroke Test Device | 11
How to Specify the SVI II ESD Device
1SVI II ESD - 6
SVI II ESD - 6
1 24
3 123
2
5
b c d e f g h
Base Model Number
Customer must select one item from each category
Key Features:•SIL3Whileat4mA
•ShutdownEventCaptured
•AutomaticAnalysis of ESD Valve Health
b: Pneumatic
1 Single-Acting
c: Capacity
1 Standard Flow
d: Display / Housing
2 Explosion proof Buttons / Standard (Aluminum)4 Explosion proof Buttons / Offshore (316L)
e: Hardware
3 SIL3 Shutdown
f: ESD Type
1 ASD w/HART®2 DSD w/HART3 A/DSD w/HART
g: Inputs / Outputs
2 Position Transmitter + Switches
h: Hazardous Certifications
5 FM, CSA, ATEX, IEC, GOST, INMETRO, KOSHA, NEPSI
www.geoilandgas.com/valves
* Masoneilan, SVI and ValVue are registered trademarks of the General Electric Company. Other company names and product names used in this document are the registered trademarksor trademarks of their respective owners.
© 2012 General Electric Company. All rights reserved.
GEA19512 12/2012
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